---
title: Water Table Concerns
description: Storm drain and culvert pipe installations can be sensitive to the presence of a water table in the backfill and surrounding soil.
---

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# [Water Table Concerns](https://resources.concretepipe.org/water-table-concerns)

 Written by [Installation](https://resources.concretepipe.org/author/installation) | 10/18/22 1:41 AM

## Water Table Concerns for Storm Drains and Culverts

Storm drain and culvert pipe installations can be sensitive to the presence of a water table in the backfill and surrounding soil. Soils placed and compacted in the pipe envelope need to be stable in the presence of water. The soil-pipe interaction analysis needs to account for the buoyant effect and impact on the passive soil pressure that a water table has on the soils used in the installation. For a rigid pipe installation these factors are somewhat insignificant, since the majority of the strength is resident within the structure of the rigid pipe material. But, for a flexible pipe, the majority of the strength is built into the soil envelope which is impacted directly and extensively by the presence of a water table.

 

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